/*
net.h -- header for net.c
- Copyright (C) 1998-2002 Ivo Timmermans <zarq@iname.com>
- 2000-2002 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 1998-2003 Ivo Timmermans <zarq@iname.com>
+ 2000-2003 Guus Sliepen <guus@sliepen.eu.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: net.h,v 1.9.4.55 2002/09/15 12:26:24 guus Exp $
+ $Id: net.h,v 1.9.4.63 2003/07/12 17:41:46 guus Exp $
*/
#ifndef __TINC_NET_H__
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/time.h>
+#include <openssl/evp.h>
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
+#include "utils.h"
+
#ifdef ENABLE_JUMBOGRAMS
#define MTU 9014 /* 9000 bytes payload + 14 bytes ethernet header */
-#define MAXSIZE 9100 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
-#define MAXBUFSIZE 9100 /* Must support TCP packets of length 9000. */
#else
#define MTU 1514 /* 1500 bytes payload + 14 bytes ethernet header */
-#define MAXSIZE 1600 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
-#define MAXBUFSIZE 2100 /* Quite large but needed for support of keys up to 8192 bits. */
#endif
+#define MAXSIZE (MTU + 4 + EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + MTU/64 + 20) /* MTU + seqno + padding + HMAC + compressor overhead */
+#define MAXBUFSIZE ((MAXSIZE > 2048 ? MAXSIZE : 2048) + 128) /* Enough room for a request with a MAXSIZEd packet or a 8192 bits RSA key */
+
#define MAXSOCKETS 128 /* Overkill... */
#define MAXQUEUELENGTH 8 /* Maximum number of packats in a single queue */
uint8_t x[4];
} ipv4_t;
-typedef struct ip_mask_t {
- ipv4_t address;
- ipv4_t mask;
-} ip_mask_t;
-
typedef struct ipv6_t {
uint16_t x[8];
} ipv6_t;
struct sockaddr sa;
struct sockaddr_in in;
struct sockaddr_in6 in6;
+#ifdef HAVE_STRUCT_SOCKADDR_STORAGE
+ struct sockaddr_storage storage;
+#endif
} sockaddr_t;
#ifdef SA_LEN
extern int seconds_till_retry;
extern int addressfamily;
-extern char *request_name[];
-extern char *status_text[];
-
#include "connection.h" /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
extern listen_socket_t listen_socket[MAXSOCKETS];
extern int do_purge;
extern char *myport;
extern time_t now;
+extern EVP_CIPHER_CTX packet_ctx;
extern void retry_outgoing(outgoing_t *);
extern void handle_incoming_vpn_data(int);
extern int setup_listen_socket(sockaddr_t *);
extern int setup_vpn_in_socket(sockaddr_t *);
extern void send_packet(struct node_t *, vpn_packet_t *);
-extern void receive_packet(struct node_t *, vpn_packet_t *);
extern void receive_tcppacket(struct connection_t *, char *, int);
extern void broadcast_packet(struct node_t *, vpn_packet_t *);
extern int setup_network_connections(void);